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March 16, 1965 P. EAN-MARIE T. ALLARD 3, 5

- LOADING McHANSM F11ed Ma 7 1962 4 SheeSSheet 1 

2. A SHOVEL DEVICE OF THE CLASS DESCRIBED, COMPRISING: AN ELONGATED LONGITUDINALLY CHASSIS MEMBER; A PAIR OF SHOVELLING ARMS PIVOTALLY CONNECTED TO SAID CHASSIS MEMBER FOR LIMITED MOVEMENT THROUGH A FIRST ANGULAR DISPLACEMENT; A PAIR OF SKIP ARMS PIVOTALLY CONNECTED TO SAID CHASSIS MEMBER FOR LIMITED MOVEMENT THROUGH A SECOND ANGULAR DISPLACEMENT GREATER THAND SAID FIRST DISPLACEMENT, SAID TWO DISPLACEMENTS BEING COEXTENSIVE THROUGHOUT SAID FIRST DISPLACEMENT; A SKIP MEMBER CARRIED BY SAID SKIP ARMS FOR RECEIVING SHOVELLED MATERIAL THEREIN DURING ADVANCING MOVEMENT OF SAID CHASSIS MEMBER; FIRST HYDRAULIC JACK MEANS CONNECTED BETWEEN SAID CHASSIS AND SAID SHOVELLING ARMS FOR MOVING SAID SHOVELLING ARMS AND SAID SKIP ARMS AS A UNIT THROUGH SAID FIRST DISPLACEMENT; SECOND HYDRAULIC JACK MEANS HAVING A PISTON AREA SMALLER THAN THE PISTON AREA OF SAID FIRST JACK MEANS CONNECTED BETWEEN SAID SHOVELLING ARMS AND SAID SKIP ARMS; HYDRAULIC CIRCUIT MEANS CONNECTED TO ENERGIZE SAID JACK MEANS SIMULTANEOUSLY TO CAUSE SAID JACK MEANS TO MOVE SAID SHOVELING ARMS AND SAID SKIP ARMS TOGETHER THROUGH SAID FIRST DISPLACEMENT AND CAUSE SAID SECOND JACK MEANS TO MOVE SAID SKIP ARMS SEPARATELY FROM SAID SHOVELLING ARMSTHROUGH A TERMINAL PORTION OF SAID SECOND DISPLACEMENT AT AN INCREASED VELOCITY WITH RESPECT TO THE VELOCITY CAUSES BY SAID FIRST JACK MEANS; STOP MEANS ABRUPTLY LIMITING THE MOVEMENT OF SAID SKIP MEANS AT THE END OF SAID SECOND DISPLCEMENT; AND RECEIVING MEANS POSITIONED TOI RECEIVE THE CONTENTS OF SAID SKIP MEANS, SAID CONTENTS BEING DISCHARGED FROM SAID SKIP MEANS, AT LEAST IN PART, BY MOMENTUM ACQUIRED BY SAID CONENTS DURING MOVEMENT OF SAID SKIP MEANS DURING SAID SECOND DISPLACEMENT. 